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All this superconductor business!

  1. Jul 13, 2004 #1
    I am new to superconductors and how they work. :confused:

    Could anybody maybe explain how currents actually arise in a superconductor? Is it just by placing the superconductor in a B-field that causes a current due to the expulsion of the external field (Messiner Effect)?

    If so, is that the only way of getting a current to pass through a superconductor? What would happen if you actually applied a voltage across the superconductor?

    And what is with the Type 2 superconductors? :eek: From what I have been reading, they do not fully undergo the Messiner effect but repell exernal fields while still having some lines of field inside which are called vortices. Is that correct? Why does this actually happen? :confused:

    -Crumbles- :rolleyes:
     
  2. jcsd
  3. Jul 13, 2004 #2

    ZapperZ

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    http://www.ornl.gov/info/reports/m/ornlm3063r1/preface.html

    You may also want to do a search on messages already posted on this forum. There have been tons of stuff already discussed on this topic.

    Zz.
     
  4. Jul 15, 2004 #3
    Thanks for that link ZapperZ. Things sort of make a bit more sense now. :smile:
     
  5. Jul 15, 2004 #4
    http://superconductors.org

    Best site for superconductors. Superconductors are one of the fields I'm serious about possibly studying when I go to college so I try to learn as much as possible about them. I've been reading about them for quite awhile, but I still have trouble visualizing cooper pairs in my head.
     
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